The new signing will be loaned back to the Championship club for the rest of the season

New Manchester United signing Wilfried Zaha has promised to do all he can to ensure he faces old club Crystal Palace in the Premier League next season.

The 20 year-old will complete his protracted move to Old Trafford following the completion of Friday's medical but will immediately re-join the Championship club on loan.

And Zaha wants to replay Palace by helping them secure promotion to the top flight.

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Knowing me, knowing you: Zaha has his medical in Manchester

"I have been at Palace for more than 10 years, I will always love the club and I want to help get them back to the Premier League, particularly for the fans who have always been so good to me," Zaha told www.cpfc.co.uk.

"I am delighted to be joining Manchester United and ending the recent speculation. However my focus for the next five months will be solely at Crystal Palace."

"This is a great deal for the club and the player," said Palace co-chairman Steve Parish.

"We would like to thank Wilf for all he has done for the club and we all wish him well when he joins Manchester United in the summer.

"But it was essential to Wilf and ourselves that he stayed at Palace for the remainder of this season to help the club with its main aim of promotion to the Premier League."

In the long term, the signing seems to place a question mark over the United future of Nani, who has so far failed to agree a new contract, with Zaha already deemed good enough to win senior international honours as a late substitute in England's defeat to Sweden in November.

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See you soon! Wilfried Zaha will return to Crystal Palace on loan

However, Sir Alex Ferguson will also have his input into the development of a player who is still eligible to play for the Ivory Coast until he features in a competitive England game.

Beyond his medical, Zaha's first United experience will be during pre-season, although whether he goes to Australia and the Far East on the extensive three-week tour will depend on whether he is picked for the European Under-21 Championships in Israel this summer.

"We like to sign young players with potential," said Ferguson.

"We can also develop players well here. That has proved to be the case many times.

"He is a young lad. Hopefully the boy will enjoy it coming here when he eventually does join us in the summer."